Abstract: A wax-polymer compound includes (a) a polymer component that is a polymerized unsaturated monomer, optionally copolymerized with a vinyl-aromatic monomer, and (b) a halogenated hydrocarbon wax component. The polymer component is grafted to the halogenated hydrocarbon wax component, and the wax-polymer compound has a number average molecular weight of about 1,000 to about 100,000. A method of making the wax-polymer compound and a coated silica particle are also disclosed.

Abstract: Various embodiments of a photonic integrated circuit (PIC) are described herein. A PIC, functioning as a coherent receiver, may include optical components such as an optical coupler, a directional coupler, a beam splitter, a polarizing beam rotator-splitter, a variable optical attenuator, a monitor photodiode, 90-degree hybrid mixer, and a waveguide photodiode. The PIC may also include electrical components such as an electrode, a capacitor, a resistor and a Zener diode.

Abstract: Systems and methods relate to interpolating values in a transfer function between a first parameter (e.g., temperature) and a second parameter (e.g., voltage). A decoder is configured to receive a temperature value and multiple trim codes each corresponding to one temperature. Decoder and adder circuitry is configured to receive the temperature value from the decoder and to receive two closest trim codes of the plurality of trim codes corresponding to two closest temperatures of the temperatures that are closest to the temperature value. The decoder and adder circuitry then calculates an output trim code based at least in part on the two closest trim codes; outputs the trim code.

Abstract: Apparatuses and methods for temperature independent oscillator circuits are disclosed herein. An example apparatus may include a pulse generator circuit configured to provide a periodic pulse based on the charging and discharging and discharging of a capacitor and further based on a reference voltage. The pulse generator circuit may include a capacitor coupled between a first reference voltage and a first node, wherein the capacitor is configured to be charged and discharged through the node in response to the periodic pulse, a resistor and a diode coupled in series between a second node and a second reference voltage, and a comparator coupled to the first and second nodes and configured to provide the periodic pulse based on voltages on the first and second nodes, wherein a period of the periodic pulse is based at least on the resistor and the a current.

Abstract: Systems and devices are provided for fully discharging leakage current generated during standby and/or power down modes regardless of variations in PVT conditions. An apparatus may include a power generation unit that powers components of the apparatus and a bleeder circuit. The bleeder circuit may include an operational amplifier. Further, the bleeder circuit may include leakage current generator circuitry that is coupled to the operational amplifier and generates a first current that mimics leakage current generated by the power generation unit. Furthermore, the bleeder circuit may include leakage current mirroring circuitry that is coupled to an output of the operational amplifier and that generates a second current that mirrors the first current. In addition, the bleeder circuit may also include leakage current bleeder circuitry that is coupled to the leakage current mirroring circuitry and that generates a third current that sinks the leakage current to ground.

Abstract: Various embodiments of a monolithic transceiver are described, which may be fabricated on a semiconductor substrate. The monolithic transceiver includes a coherent receiver module (CRM), a coherent transmitter module (CTM), and a local oscillation splitter to feed a local oscillation to the CRM and the CTM with a tunable power ratio. The monolithic transceiver provides tunable responsivity by employing avalanche photodiodes (APDs) for opto-electrical conversion. The monolithic transceiver also employs a polarization beam rotator-splitter (PBRS) and a polarization beam rotator-combiner (PBRC) for supporting modulation schemes including polarization multiplexed quadrature amplitude modulation (PM-QAM) and polarization multiplexed quadrature phase shift keying (PM-QPSK).

Abstract: Apparatuses and methods for pure-time, self-adopt sampling for RHR refresh. An example apparatus includes a memory bank comprising a plurality of rows each associated with a respective row address, and a sampling timing generator circuit configured to provide a timing signal having a plurality of pulses. Each of the plurality of pulses is configured to initiate sampling of a respective row address associated with a row of the plurality of rows to detect a row hammer attack. The sampling timing generator includes first circuitry configured to provide a first subset of pulses of the plurality of pulses during a first time period and includes second circuitry configured to initiate provision of a second subset of pulses of the plurality of pulses during a second time period after the first time period.

Abstract: Apparatus and methods that have a semiconductor charge pump can be implemented in a variety of applications. Such a charge pump can have a charge pump unit core that includes a pump section and a single passgate coupled to the pump section to transfer charge, where the single passgate is a n-channel metal-oxide semiconductor (NMOS) transistor coupled directly to an input and an output of the charge pump unit core. The transfer of charge can be based on a set of clock signals. Additional apparatus, systems, and methods are disclosed.

Abstract: The present invention provides an elastomeric composition comprising: at least one first elastomer; at least one first hydrocarbon polymer additive; and at least one second hydrocarbon polymer additive; wherein each of the first hydrocarbon polymer additive and the second hydrocarbon polymer additive is selected from the group consisting of: C5 aliphatic resins, C9 aromatic resins, mixed C5/C9 resins, pure aromatic monomer resins, dicyclopentadiene (DCPD) resins, aromatic modified cycloaliphatic resins, coumarone indene resins, rosin resins, rosin esters, terpene resins, modified terpene resins, terpene phenolic resins, and hydrogenated resins thereof. The composition may further comprise a second elastomer which is immiscible with the first elastomer.

Abstract: Embodiments of an inflatable dam sized to be secured to a foundation structure with an anchor line. The inflatable dam includes a main bladder and an overlapping layer. The main bladder is moveable between deflated and inflated states such that, in the inflated state, the main bladder extends with a tubular configuration. The overlapping layer is sized and configured to extend over a portion of the main bladder and, in the inflated state, concentrically aligned with the portion of the main bladder. The overlapping layer is sized to extend with an overlapping length and to extend laterally between a first end portion and a second end portion along the overlapping length, the first end portion being coupled to the fin structure and the second end portion being configured to be coupled to the anchor line and the foundation structure.

Abstract: Various embodiments of a monolithic avalanche photodiode (APD) are described, which may be fabricated on a silicon-on-insulator substrate. The monolithic APD includes an optical waveguide that guides an incident light to an active region of the APD. An optical coupler is integrally formed with the optical waveguide to capture the incident light. The monolithic APD also includes an optical reflector to reflect a portion of the incident light that is not readily captured by the optical coupler back to the optical coupler for further capturing. The active region includes an absorption layer for converting the incident light into a photocurrent, an epitaxial structure for amplifying the photocurrent by avalanche multiplication, as well as a pair of electrical conductors for conducting the amplified photocurrent.

Abstract: Various embodiments of a monolithic electro-optical (E-O) modulator are described, which may be fabricated on a silicon-on-insulator substrate. The monolithic E-O modulator includes an optical waveguide that allows an optical signal to propagate therein. The monolithic E-O modulator also includes a comb-shaped transmission line for conducting an electrical modulation signal that modulates the optical signal. The comb-shaped transmission line includes electrical conductors running in parallel with the optical waveguide. At least one of the conductors includes recesses or thin slots that form the conductor into a shape having a plurality of teeth, like a comb. The comb-shaped transmission line can be engineered to realize a close matching between a propagation velocity of the optical signal along the optical waveguide and a group velocity of the electrical modulation signal along the comb-shaped transmission line, which helps to achieve a high operating speed of the monolithic E-O modulator.

Abstract: According to one embodiment of this disclosure, an apparatus is disclosed. The apparatus includes a voltage regulator configured to produce a regulated voltage, a plurality of current circuits coupled in parallel between an output node and a power node, each of the plurality of current circuits including first and second transistors coupled in series, the first transistor of each of the plurality of current circuits being biased with the regulated voltage, and a control circuit configured to activate the second transistor of selected one or ones of the plurality of current circuits responsive, at least in part, to a voltage at the output node.

Abstract: Various embodiments of a photonic integrated circuit (PIC) are described herein. A PIC, functioning as a coherent receiver, may include optical components such as an optical coupler, a directional coupler, a beam splitter, a polarizing beam rotator-splitter, a variable optical attenuator, a monitor photodiode, 90-degree hybrid mixer, and a waveguide photodiode. The PIC may also include electrical components such as an electrode, a capacitor, a resistor and a Zener diode.

Abstract: Methods of operating a charge pump, and charge pumps configured to perform similar methods, involve monitoring a level of a supply voltage of the charge pump, and turning off an oscillator of the charge pump responsive to the level of the supply voltage dropping below a certain level, wherein turning off the oscillator comprises setting an inverter in a ring oscillator loop of the oscillator to a steady state output.

Abstract: A memory device includes a memory array including a plurality of memory cells; and an array timer coupled to the memory array, configured to generate an output timing signal based on a fixed input and a reference signal, wherein: the fixed input is from a supply circuit, the reference signal is from a reference block, and the output timing signal is configured to control the memory array.

Abstract: Various embodiments of a monolithic electro-optical (E-O) modulator are described herein. The monolithic E-O modulator may include a phase shifter having a suspended structure. The suspended structure may be realized by partially or completely removing silicon material underneath the active area of the phase shifter to form a void in the bulk silicon substrate supporting the phase shifter. The suspended structure may be utilized to result in a lower radio-frequency loss and an effective group refractive index of the phase shifter that is closer to the refractive index of silicon waveguides or optical fibers, both advantageous to enhancing the performance of the E-O modulator such as a higher operating bandwidth.

Abstract: A device includes a first terminal configured to receive a reference voltage, a second terminal configured to receive a weighted tap value, a local generator circuit configured to create a group of unsigned voltage correction values based on the reference voltage and the weighted tap value, and a sign configuring circuit configured to receive the group of unsigned voltage correction values from the local generator circuit and assign a polarity to each respective unsigned voltage correction value of the group of unsigned voltage correction values, creating correction signals from the group of unsigned voltage correction values. The device also includes an output configured to transmit the correction signals to a first input of a processing circuit, wherein the processing circuit is configured to use the correction signals to offset inter-symbol interference from a data stream on a distorted bit based at least on a control signal.

Abstract: Systems and devices are provided for fully discharging leakage current generated during standby and/or power down modes regardless of variations in PVT conditions. An apparatus may include a power generation unit that powers components of the apparatus and a bleeder circuit. The bleeder circuit may include an operational amplifier. Further, the bleeder circuit may include leakage current generator circuitry that is coupled to the operational amplifier and generates a first current that mimics leakage current generated by the power generation unit. Furthermore, the bleeder circuit may include leakage current mirroring circuitry that is coupled to an output of the operational amplifier and that generates a second current that mirrors the first current. In addition, the bleeder circuit may also include leakage current bleeder circuitry that is coupled to the leakage current mirroring circuitry and that generates a third current that sinks the leakage current to ground.

Abstract: Various embodiments of a monolithic electro-optical (E-O) modulator are described. The monolithic E-O modulator includes an active region comprising a plurality of p-n junction diodes, as well as a modulation electrode and a bias electrode that extend through the active region. The monolithic E-O modulator further includes a resistor-capacitor-bias-capacitor (RCBC) electrode structure configured to receive an electrical modulation signal, a direct-current (DC) bias voltage and a power supply voltage. Specifically, the RCBC electrode structure includes a resistor coupled to the modulation electrode and two capacitors each coupled to a respective end of the bias electrode. Beneficially, the RCBC electrode structure enables the p-n junction diodes to be biased independently from a DC level of the electrical modulation signal.